河北农业科学2025，Vol.29Issue(5)：1-6,66,7.DOI:10.12148/hbnykx.20250073
缓释氮肥与尿素掺施对谷子产量和经济效益以及氮素吸收利用的影响
Effects of Slow-release Nitrogen Fertilizer and Urea Co-application on Yield,Economic Benefits,and Nitrogen Absorption and Utilization of Millet
摘要
Abstract
Studying the effects of co-application of slow-release nitrogen fertilizer(provided by slow-release urea)and ordinary nitrogen fertilizer(provided by ordinary urea)on the growth of millet can provide scientific basis for the good production of millet and efficient utilization of nitrogen fertilizer.Using millet varieties Chiyujinmiao No.5 and Chiyujinmiao No.6 as the experimental materials,and no nitrogen fertilizer treatment as the control,the effects of one-time basal application of conventional nitrogen fertilizer(N application rate of 94.5 kg/hm2)mixed with five ra-tios of ordinary nitrogen fertilizer and slow-release nitrogen fertilizer[application rate ratio of 10:0(all applied with ordinary urea),7∶3,5∶5,3∶7,0∶10(all applied with slow-release nitrogen fertilizer)]on the a-gronomic traits,yield traits,nitrogen use characteris-tics,and economic benefits of millet were studied.The results showed that the agronomic traits,yield traits,grain nitrogen accumulation,and economic benefits of the two nitrogen application treatments were higher than those of the no nitrogen application treatment.The nitrogen partial productivity of the slow-release nitrogen fertilizer and ordinary nitrogen fertilizer combined treatment was higher than that of the two fertilizers ap-plied alone.The indicator values showed a trend of first increasing and then decreasing with the increase of the proportion of slow-release nitrogen fertilizer blend-ing.There were certain differences in the indicator values of different blending ratios.Chiyoujinmiao No.5 and Chiyoujinmiao No.6 exhibited the best agronomic and yield characteristics when the ratio of urea to slow-release nitrogen fertilizer blending was 5∶5 and 3∶7,respectively,but the net income was the highest when the ratio of urea to slow-release nitrogen fertilizer blending was 5:5.Under conventional nitrogen application conditions in millet production,mixing urea with slow-release nitrogen fertilizer in a ratio of 5∶5 and applying it as a one-time basal fertilizer can achieve the effects of increasing efficiency,saving labor,and reducing costs.关键词
谷子/缓释氮肥/氮肥掺施/产量/氮素利用Key words
Millet/Slow-release nitrogen fertilizer/Nitrogen fertilizer application/Yield/Nitrogen utilization分类
农业科技引用本文复制引用
南海英,付颖,沈轶男,白晓雷,柴晓娇,杨恩泽..缓释氮肥与尿素掺施对谷子产量和经济效益以及氮素吸收利用的影响[J].河北农业科学,2025,29(5):1-6,66,7.基金项目
内蒙古自治区科技计划项目(2023KYPT0026) （2023KYPT0026）
赤峰市自然科学科研课题(SZR2025236) （SZR2025236）
内蒙古杂粮杂豆现代农牧业产业技术体系项目(IMARS-02) （IMARS-02）
内蒙古自治区谷子联合攻关项目(YZ2023007) （YZ2023007）
内蒙古自治区"草原英才"工程青年创新一层次人才项目 （）
